fond of a factor? Urn yourself to become remains

[Dubslow]

Originally Posted by Prime95

The title hasn't changed in over a year, time to begin another round of changes....

Unfortunately "lost prosperity office" is now seared in my head.

[alpertron]

Very smooth prime factor of M1497577: 413967618533674438312273239368161 (109 bits)

k = 2⁴ × 3⁴ × 5 × 37 × 167 × 197 × 1459 × 3637 × 6703 × 492629

[VictordeHolland]

B-S is working great for me this year:

[Thu Mar 12 01:00:38 2015]
P-1 found a factor in stage #2, B1=10000000, B2=200000000, E=12.
UID: VictordeHollander/PCVICTOR, M1545007 has a factor: 9694966038406498466146561 (P-1, B1=10000000, B2=200000000, E=12)

k = 3137515246988039040 = 27 × 3 × 5 × 17 × 42,181 × 2,278,866,181
25 digits 83.004 bits

2,278,866,181 > 11x B2(200,000,000)!

[VictordeHolland]

My 4th B-S this year!

P-1 found a factor in stage #2, B1=10000000, B2=200000000, E=12.
UID: VictordeHollander/PCVICTOR, M1526977 has a factor: 22259470830172378348329617 (P-1, B1=10000000, B2=200000000, E=12)

26 digits 84.203 bits
k = 7288738085174949704 = 23 × 73 × 71 × 15,161 × 2,467,641,361
2,467,641,361 >12 x B2(200,000,000)

[LaurV]

Lucky son of a gun! Congrats!
I have only 3 or 4 Brent-Suyama hits in lifetime (if I am not mistaken, one was from Kracker's computers, when we were exchanging GHzDays).

[legendarymudkip]

M50273 has a factor: 987139826417276834314931283761815154689 (129.537 bits)
k = 2¹¹ × 3³ × 53 × 3349996012462457805367581481 (I hope you have plenty of memory for stage 2 )
Sigma 309170328303138 gave group order 2⁶ · 3² · 103 · 599 · 1373 · 2129 · 2311 · 6091 · 159793 · 252359 · 16740979, could've been found with t30 bounds instead of t40, but wrong sigmas tested, you can never know.

[lycorn]

Congrats! It was a juicy one...

[firejuggler]

first factor in a while.
M36794633 has a factor: 7547690687957650291279 (found by P-1,72.677 bits))
k=3*7*37*47*523*5370059
Would it have been faster with a B1 of 5370060 or with a B1 @523 and a B2@5370060?

[VBCurtis]

Originally Posted by firejuggler

first factor in a while.
M36794633 has a factor: 7547690687957650291279 (found by P-1,72.677 bits))
k=3*7*37*47*523*5370059
Would it have been faster with a B1 of 5370060 or with a B1 @523 and a B2@5370060?

I'm pretty sure B2 cannot exceed the square of B1. This is true for ECM, at least.

[axn]

Originally Posted by VBCurtis

I'm pretty sure B2 cannot exceed the square of B1. This is true for ECM, at least.

I don't understand this statement. Why can't B2 exceed square of B1 (for both P-1 and ECM)?

[R.D. Silverman]

Originally Posted by VBCurtis

I'm pretty sure B2 cannot exceed the square of B1. This is true for ECM, at least.

False for both. Why don't you try learning how both algorithms work before making future
pronouncements?